| Primary satellite | Secondary satellite |
| Name | Hubble Space Telescope | COSMOS 2251 DEB |
| Spacetrack catalog number | 20580 | 35996 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Jul 08 12:07 | 2025 Jul 08 00:02 |
| Time of closest approach (UTC) | 2024 Jun 14 12:05:17.503 |
| Minimum distance | 2256.742 km |
| Height difference | 152.630 km |
| Relative speed | 11.282 km/s |
| Angle between velocity vectors | 97° |
| Geographic position | 15.1°S, 103.4°W |
| Height | 493 km |
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